Alert archive / Texas / Flash Flood Warnings in 2016

Flash Flood Warning 7, NWS Amarillo, TX

May 22, 2016Collingsworth County, Texas

NWS Amarillo, TX issued this flash flood warning at May 22, 2016, 8:54 PM CDT for Collingsworth County, Texas. It was in force for 3 hr. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: May 22, 2016, 8:54 PM CDT (01:54 UTC)
Expired: May 23, 2016, 12:00 AM CDT
In force: 3 hr
Issued by: NWS Amarillo, TX
Area: Storm-based polygon
Flood severity: None

County Collingsworth County, TX

The radar

The Amarillo radar (KAMA), 129 km from the middle of the area, began a volume at 01:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
May 22, 9:22 PM CDT	FLASH FLOOD	Quail, TX	SHERIFFS OFFICE IS REPORTING FLASH FLOODING IN PROGRESS.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Amarillo Airport, TX (KAMA), launched 00:00Z, 1.9 hours before the alert went out and 128 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2186 J/kg
Mixed-layer CIN: -8 J/kg
Mixed-layer LCL: 1794 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 126 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 5.7

Open this sounding in Storm Lab

The text

As transmitted.

840 
WGUS54 KAMA 230154
FFWAMA
TXC087-230500-
/O.NEW.KAMA.FF.W.0007.160523T0154Z-160523T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE AMARILLO TX
854 PM CDT SUN MAY 22 2016

THE NATIONAL WEATHER SERVICE IN AMARILLO HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  SOUTHWESTERN COLLINGSWORTH COUNTY IN THE PANHANDLE OF TEXAS...

* UNTIL MIDNIGHT CDT

* AT 854 PM CDT...DOPPLER RADAR INDICATED SLOW MOVING THUNDERSTORMS
  PRODUCING HEAVY RAIN ACROSS THE WARNED AREA. UP TO THREE INCHES OF
  RAIN HAVE ALREADY FALLEN. FLASH FLOODING IS EXPECTED TO BEGIN
  SHORTLY.

ADDITIONAL RAINFALL AMOUNTS OF UP TO 2 INCHES ARE POSSIBLE IN THE
WARNED AREA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3495 10025 3475 10021 3475 10054 3496 10054

$$

BIEDA

1 follow-up statement

870 
WGUS74 KAMA 230306
FFSAMA

FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE AMARILLO TX
1006 PM CDT SUN MAY 22 2016

TXC087-230500-
/O.CON.KAMA.FF.W.0007.000000T0000Z-160523T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
COLLINGSWORTH TX-
1006 PM CDT SUN MAY 22 2016

...THE FLASH FLOOD WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT FOR
SOUTHWESTERN COLLINGSWORTH COUNTY...

AT 1005 PM CDT...LOCAL LAW ENFORCEMENT HAD REPORTED FLASH FLOODING
IN PROGRESS OVER SOUTHWESTERN COLLINGSWORTH COUNTY WITH UP TO 8
INCHES OF RAINFALL ESTIMATED TO HAVE FALLEN.  FLASH FLOODING IS IN
PROGRESS...AND WILL CONTINUE FOR SOME TIME THIS EVENING.  AS
THUNDERSTORMS ARE COMING TO AN END...FLOOD WATERS SHOULD START TO
RECEDE.  

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOVE TO HIGHER GROUND NOW. ACT QUICKLY TO PROTECT YOUR LIFE.

BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE
DANGERS OF FLOODING.

&&

LAT...LON 3495 10025 3475 10021 3475 10054 3496 10054

$$

BIEDA

The office that day

Everything else NWS Amarillo, TX issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 22, 7:14 PM CDT	Areal Flood Advisory	AMA	Donley, Gray	3 hr
May 22, 7:27 PM CDT	Tornado Warning Tornado observed	AMA	Ochiltree	33 min
May 22, 7:55 PM CDT	Tornado Warning	AMA	Ochiltree, Roberts	50 min
May 22, 8:04 PM CDT	Special Weather Statement	AMA	Armstrong	26 min
May 22, 8:11 PM CDT	Areal Flood Advisory	AMA	Collingsworth	3 hr
May 22, 8:17 PM CDT	Areal Flood Advisory	AMA	Ochiltree	3 hr
May 22, 8:23 PM CDT	Severe Thunderstorm Warning	AMA	Ochiltree	37 min
May 22, 8:29 PM CDT	Areal Flood Advisory	AMA	Donley	3 hr
May 22, 8:41 PM CDT	Tornado Warning Tornado observed	AMA	Hemphill, Lipscomb, Ochiltree, Roberts	27 min
May 22, 8:56 PM CDT	Flash Flood Warning	AMA	Donley	3 hr
May 22, 9:08 PM CDT	Special Weather Statement	AMA	Roberts	37 min
May 22, 9:19 PM CDT	Areal Flood Advisory	AMA	Collingsworth	3 hr
May 22, 9:46 PM CDT	Special Weather Statement	AMA	Ochiltree	29 min
May 22, 9:53 PM CDT	Areal Flood Advisory	AMA	Ochiltree, Roberts	3 hr
May 22, 10:57 PM CDT	Special Weather Statement	AMA	Lipscomb	48 min
May 23, 3:33 PM CDT	Flash Flood Watch	AMA	Collingsworth, Donley	12 hr
May 23, 3:53 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley	67 min
May 23, 4:58 PM CDT	Special Weather Statement	AMA	Collingsworth	47 min
May 23, 6:26 PM CDT	Severe Thunderstorm Warning	AMA	Collingsworth, Donley, Gray	64 min
May 23, 6:52 PM CDT	Special Weather Statement	AMA	Donley	23 min

Nearby

Flash Flood Warnings in Texas, 2016 Every flash flood warning in 2016

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.